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anyone know where to get the speedo correction box on the t/case?

Discussion in 'The Garage' started by LKJR, Jun 11, 2004.

  1. LKJR

    LKJR 1/2 ton status

    Apr 18, 2000
    Likes Received:
    Lubbock, Tx
    the little gray box on the tcase to help fix the speedo. Mine broke years ago and I'd like to get one that works before the TPI swap and all, and I need to fix my leaky thingy like the other post talks about, (been putting it off)

    anyway 36" tires, 4.10, th350 off a np205 if it makes a differece
  2. pauly383

    pauly383 Daddy383 Staff Member Moderator

    Jul 22, 2001
    Likes Received:
    Mesa , Arizona USA
    Do you mean this PIC ?

    I found it here Transmission Center

    Seems they also sell kits for 2wd car guys who want new engines and trans to older 2wd apps
  3. HarryH3

    HarryH3 1 ton status Author

    May 31, 2000
    Likes Received:
    Georgetown, TX
    Look in the Yellow Pages under Speedometer Repair. You may have a local shop that can build you one. Also, there are a LOT of different gears available to stuff inside of those, so they can make just about any possible ratio that you might need. That way they can make your speedo read correctly regardless of the tire size and gear ratio changes you might have made. /forums/images/graemlins/thumb.gif

    If you can't find one locally, they're commonly called speed ratio adapters, so a Google search should come up with something. I've also seen them in the past at www.speedometerservice.com /forums/images/graemlins/cool.gif

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